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'Regular expression filter' option is useful when there is need to exclude addresses with some defined pattern , to be not from being matched automatically in geocoding. You can use regular expressions in this field for more complex searches.
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- There are a few matches for a record – in that case you should specify one record that should be used in order to geocode selected record.
- No matches found – in that case you should geocode your layer again (go to Administration > Create > Geocode) using other columns (it's a good idea is checking to check Geocode only currently ungeocoded records) and see if the results are better. Please also consider using additional options for improving results of matching ('Regular expression filter', 'Exclusions filter'). It also appears when there are too many matches for one record.
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